The EFlight Designs µBEC ("micro-BEC") is a
lightweight 5V voltage regulator that enables you to
power a small receiver and micro-servos from a 2-cell
(7.4) lithium-polymer (li-poly) battery pack without
using an electronic speed control (ESC). It is
designed primarily for glider pilots who wish to use lipoly
battery packs for their higher capacity and lighter
weight. µBEC weighs approximately 2 grams.